diff --git a/src/mainboard/starlabs/lite/dsdt.asl b/src/mainboard/starlabs/lite/dsdt.asl
index 7b2918b249..13a1eb626c 100644
--- a/src/mainboard/starlabs/lite/dsdt.asl
+++ b/src/mainboard/starlabs/lite/dsdt.asl
@@ -26,6 +26,8 @@ DefinitionBlock(
 		#include <drivers/pc80/pc/ps2_controller.asl>
 	}
 
+	#include <southbridge/intel/common/acpi/sleepstates.asl>
+
 	/* Star Labs EC */
 	#include <ec/starlabs/merlin/acpi/ec.asl>
 
diff --git a/src/mainboard/starlabs/starbook/dsdt.asl b/src/mainboard/starlabs/starbook/dsdt.asl
index cacbf3d58a..06889490ab 100644
--- a/src/mainboard/starlabs/starbook/dsdt.asl
+++ b/src/mainboard/starlabs/starbook/dsdt.asl
@@ -39,6 +39,8 @@ DefinitionBlock(
 		#include <drivers/pc80/pc/ps2_controller.asl>
 	}
 
+	#include <southbridge/intel/common/acpi/sleepstates.asl>
+
 	/* Star Labs EC */
 	#include <ec/starlabs/merlin/acpi/ec.asl>